AI brief of an SEC Form 8-K · 21Shares Ethereum Staking ETF (TETH)

21Shares Ethereum Staking ETF switches price benchmark to FTSE Ethereum Index from Aug. 27

Neutral Impact 3 of 5 product/contract Written later

The trust's sponsor signed a licensing agreement with FTSE International for the FTSE Ethereum Index, which will replace the CME CF Ether-Dollar Reference Rate used to value the fund's shares and calculate net asset value starting August 27, 2026. The sponsor also amended its fee terms so the sponsor fee is paid at least quarterly instead of weekly, and the trust renamed itself and updated its trust agreement; the filing says none of these changes materially affect shareholder rights.

Key points

  • Benchmark change: FTSE Ethereum Index replaces the CME CF Ether-Dollar Reference Rate - New York Variant, effective August 27, 2026, after the CF Benchmarks license terminates August 31, 2026.
  • Licensing agreement dated August 20, 2026, with an expected one-year initial term that renews automatically for one-year periods unless terminated.
  • Sponsor fee payment changed from weekly in arrears to at least quarterly in arrears, payable in ether (Amendment No. 2, August 26, 2026).
  • Trust renamed from 21Shares Ethereum ETF to 21Shares Ethereum Staking ETF; Fourth Amended and Restated Trust Agreement entered August 26, 2026.

The filing

Company21Shares Ethereum Staking ETF (TETH)
Form8-K, current report
Filed with the SECAug 26, 2026, 4:12 PM ET
Accession number0001213900-26-093968

Items reported: 1.01 Material Definitive Agreement5.03 Bylaw / Charter Amendment

Read the filing on SEC.gov ↗

Written by AI on Nov 9, 2026, 11:46 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on August 26, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.